Significant Accounting Policies - Additional Information (Detail) $ in Thousands, shares in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) segment shares	Dec. 31, 2014 USD ($) shares	Dec. 31, 2013 USD ($) shares
Accounting Policies [Abstract]
Number of reportable segments | segment	3
Advertising costs	$ 16,100	$ 14,500	$ 14,600
Highly liquid debt instruments, maturity period	90 days or less
Impairment of long-lived assets	$ 800	2,500	2,700
(Increase) decrease in income attributable to common shareholders	$ 800	$ 1,300	$ 1,200
Option to purchase common stock shares not included in the computation of diluted EPS | shares	0.9	0.5	0.0
Research and development expense	$ 33,600	$ 36,800	$ 33,000
Foreign currency transaction loss	$ (100)	900	$ 2,200
Percentage of concentration risk	2.00%
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Less deferred debt issuance costs	$ 5,203	4,607
Other Assets and Long-term Debt | New Accounting Pronouncement, Early Adoption, Effect
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Less deferred debt issuance costs		$ 4,600